249cc75fd1
2^32 bps or greater to be used. Prior to this, bandwidth parameters would simply wrap at the 2^32 boundary. The computations in the HFSC scheduler and token bucket regulator have been modified to operate correctly up to at least 100 Gbps. No other algorithms have been examined or modified for correct operation above 2^32 bps (some may have existing computation resolution or overflow issues at rates below that threshold). pfctl(8) will now limit non-HFSC bandwidth parameters to 2^32 - 1 before passing them to the kernel. The extensions to the pf(4) ioctl interface have been made in a backwards-compatible way by versioning affected data structures, supporting all versions in the kernel, and implementing macros that will cause existing code that consumes that interface to use version 0 without source modifications. If version 0 consumers of the interface are used against a new kernel that has had bandwidth parameters of 2^32 or greater configured by updated tools, such bandwidth parameters will be reported as 2^32 - 1 bps by those old consumers. All in-tree consumers of the pf(4) interface have been updated. To update out-of-tree consumers to the latest version of the interface, define PFIOC_USE_LATEST ahead of any includes and use the code of pfctl(8) as a guide for the ioctls of interest. PR: 211730 Reviewed by: jmallett, kp, loos MFC after: 2 weeks Relnotes: yes Sponsored by: RG Nets Differential Revision: https://reviews.freebsd.org/D16782
232 lines
7.4 KiB
C
232 lines
7.4 KiB
C
/*-
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* Copyright (C) 1998-2003
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* Sony Computer Science Laboratories Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $KAME: altq.h,v 1.10 2003/07/10 12:07:47 kjc Exp $
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* $FreeBSD$
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*/
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#ifndef _ALTQ_ALTQ_H_
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#define _ALTQ_ALTQ_H_
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#if 0
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/*
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* allow altq-3 (altqd(8) and /dev/altq) to coexist with the new pf-based altq.
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* altq3 is mainly for research experiments. pf-based altq is for daily use.
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*/
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#define ALTQ3_COMPAT /* for compatibility with altq-3 */
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#define ALTQ3_CLFIER_COMPAT /* for compatibility with altq-3 classifier */
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#endif
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#ifdef ALTQ3_COMPAT
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#include <sys/param.h>
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#include <sys/ioccom.h>
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#include <sys/queue.h>
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#include <netinet/in.h>
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#ifndef IFNAMSIZ
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#define IFNAMSIZ 16
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#endif
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#endif /* ALTQ3_COMPAT */
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/* altq discipline type */
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#define ALTQT_NONE 0 /* reserved */
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#define ALTQT_CBQ 1 /* cbq */
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#define ALTQT_WFQ 2 /* wfq */
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#define ALTQT_AFMAP 3 /* afmap */
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#define ALTQT_FIFOQ 4 /* fifoq */
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#define ALTQT_RED 5 /* red */
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#define ALTQT_RIO 6 /* rio */
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#define ALTQT_LOCALQ 7 /* local use */
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#define ALTQT_HFSC 8 /* hfsc */
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#define ALTQT_CDNR 9 /* traffic conditioner */
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#define ALTQT_BLUE 10 /* blue */
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#define ALTQT_PRIQ 11 /* priority queue */
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#define ALTQT_JOBS 12 /* JoBS */
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#define ALTQT_FAIRQ 13 /* fairq */
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#define ALTQT_CODEL 14 /* CoDel */
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#define ALTQT_MAX 15 /* should be max discipline type + 1 */
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#ifdef ALTQ3_COMPAT
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struct altqreq {
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char ifname[IFNAMSIZ]; /* if name, e.g. "en0" */
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u_long arg; /* request-specific argument */
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};
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#endif
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/* simple token backet meter profile */
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struct tb_profile {
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u_int64_t rate; /* rate in bit-per-sec */
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u_int32_t depth; /* depth in bytes */
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};
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#ifdef ALTQ3_COMPAT
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struct tbrreq {
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char ifname[IFNAMSIZ]; /* if name, e.g. "en0" */
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struct tb_profile tb_prof; /* token bucket profile */
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};
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#ifdef ALTQ3_CLFIER_COMPAT
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/*
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* common network flow info structure
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*/
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struct flowinfo {
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u_char fi_len; /* total length */
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u_char fi_family; /* address family */
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u_int8_t fi_data[46]; /* actually longer; address family
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specific flow info. */
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};
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/*
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* flow info structure for internet protocol family.
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* (currently this is the only protocol family supported)
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*/
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struct flowinfo_in {
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u_char fi_len; /* sizeof(struct flowinfo_in) */
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u_char fi_family; /* AF_INET */
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u_int8_t fi_proto; /* IPPROTO_XXX */
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u_int8_t fi_tos; /* type-of-service */
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struct in_addr fi_dst; /* dest address */
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struct in_addr fi_src; /* src address */
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u_int16_t fi_dport; /* dest port */
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u_int16_t fi_sport; /* src port */
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u_int32_t fi_gpi; /* generalized port id for ipsec */
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u_int8_t _pad[28]; /* make the size equal to
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flowinfo_in6 */
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};
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#ifdef SIN6_LEN
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struct flowinfo_in6 {
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u_char fi6_len; /* sizeof(struct flowinfo_in6) */
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u_char fi6_family; /* AF_INET6 */
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u_int8_t fi6_proto; /* IPPROTO_XXX */
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u_int8_t fi6_tclass; /* traffic class */
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u_int32_t fi6_flowlabel; /* ipv6 flowlabel */
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u_int16_t fi6_dport; /* dest port */
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u_int16_t fi6_sport; /* src port */
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u_int32_t fi6_gpi; /* generalized port id */
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struct in6_addr fi6_dst; /* dest address */
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struct in6_addr fi6_src; /* src address */
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};
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#endif /* INET6 */
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/*
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* flow filters for AF_INET and AF_INET6
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*/
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struct flow_filter {
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int ff_ruleno;
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struct flowinfo_in ff_flow;
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struct {
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struct in_addr mask_dst;
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struct in_addr mask_src;
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u_int8_t mask_tos;
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u_int8_t _pad[3];
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} ff_mask;
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u_int8_t _pad2[24]; /* make the size equal to flow_filter6 */
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};
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#ifdef SIN6_LEN
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struct flow_filter6 {
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int ff_ruleno;
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struct flowinfo_in6 ff_flow6;
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struct {
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struct in6_addr mask6_dst;
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struct in6_addr mask6_src;
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u_int8_t mask6_tclass;
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u_int8_t _pad[3];
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} ff_mask6;
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};
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#endif /* INET6 */
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#endif /* ALTQ3_CLFIER_COMPAT */
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#endif /* ALTQ3_COMPAT */
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/*
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* generic packet counter
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*/
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struct pktcntr {
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u_int64_t packets;
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u_int64_t bytes;
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};
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#define PKTCNTR_ADD(cntr, len) \
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do { (cntr)->packets++; (cntr)->bytes += len; } while (/*CONSTCOND*/ 0)
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#ifdef ALTQ3_COMPAT
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/*
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* altq related ioctls
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*/
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#define ALTQGTYPE _IOWR('q', 0, struct altqreq) /* get queue type */
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#if 0
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/*
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* these ioctls are currently discipline-specific but could be shared
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* in the future.
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*/
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#define ALTQATTACH _IOW('q', 1, struct altqreq) /* attach discipline */
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#define ALTQDETACH _IOW('q', 2, struct altqreq) /* detach discipline */
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#define ALTQENABLE _IOW('q', 3, struct altqreq) /* enable discipline */
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#define ALTQDISABLE _IOW('q', 4, struct altqreq) /* disable discipline*/
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#define ALTQCLEAR _IOW('q', 5, struct altqreq) /* (re)initialize */
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#define ALTQCONFIG _IOWR('q', 6, struct altqreq) /* set config params */
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#define ALTQADDCLASS _IOWR('q', 7, struct altqreq) /* add a class */
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#define ALTQMODCLASS _IOWR('q', 8, struct altqreq) /* modify a class */
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#define ALTQDELCLASS _IOWR('q', 9, struct altqreq) /* delete a class */
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#define ALTQADDFILTER _IOWR('q', 10, struct altqreq) /* add a filter */
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#define ALTQDELFILTER _IOWR('q', 11, struct altqreq) /* delete a filter */
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#define ALTQGETSTATS _IOWR('q', 12, struct altqreq) /* get statistics */
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#define ALTQGETCNTR _IOWR('q', 13, struct altqreq) /* get a pkt counter */
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#endif /* 0 */
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#define ALTQTBRSET _IOW('q', 14, struct tbrreq) /* set tb regulator */
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#define ALTQTBRGET _IOWR('q', 15, struct tbrreq) /* get tb regulator */
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#endif /* ALTQ3_COMPAT */
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#ifdef _KERNEL
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#include <net/altq/altq_var.h>
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#endif
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/*
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* Can't put these versions in the scheduler-specific headers and include
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* them all here as that will cause build failure due to cross-including
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* each other scheduler's private bits into each scheduler's
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* implementation.
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*/
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#define CBQ_STATS_VERSION 0 /* Latest version of class_stats_t */
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#define CODEL_STATS_VERSION 0 /* Latest version of codel_ifstats */
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#define FAIRQ_STATS_VERSION 0 /* Latest version of fairq_classstats */
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#define HFSC_STATS_VERSION 1 /* Latest version of hfsc_classstats */
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#define PRIQ_STATS_VERSION 0 /* Latest version of priq_classstats */
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/* Return the latest stats version for the given scheduler. */
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static inline int altq_stats_version(int scheduler)
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{
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switch (scheduler) {
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case ALTQT_CBQ: return (CBQ_STATS_VERSION);
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case ALTQT_CODEL: return (CODEL_STATS_VERSION);
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case ALTQT_FAIRQ: return (FAIRQ_STATS_VERSION);
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case ALTQT_HFSC: return (HFSC_STATS_VERSION);
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case ALTQT_PRIQ: return (PRIQ_STATS_VERSION);
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default: return (0);
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}
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}
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#endif /* _ALTQ_ALTQ_H_ */
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